Finding the Fourth Proportional to 1,178,772.48, 1,626,716.16 and 642,263.04
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Solution
The fourth proportional to 1,178,772.48, 1,626,716.16 and 642,263.04 is: 886,328.52
Step by Step Solution
- Step 1: Write the proportion equation
1,178,772.48 : 1,626,716.16 = 642,263.04 : x - Step 2: Convert to fraction form
1,178,772.48/1,626,716.16 = 642,263.04/x - Step 3: Cross multiply
1,178,772.48x = 1,626,716.16 × 642,263.04 - Step 4: Simplify right side
1,178,772.48x = 1,044,779,666,138.73 - Step 5: Solve for x
x = 1,044,779,666,138.73/1,178,772.48 - Step 6: Final answer
x = 886,328.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.